[英]C# HttpClient Post using Json Object is failing
問題陳述:
I'm trying to post the data to the test url in C# using JSON data is failing, but when i try the same thing in Postman it succeeds.
C# 代碼片段
string uploadPath = @"https://api.test.com/test";
string jsonData = "{ \"message\":\"ERROR: ABCDEXY: Price\"," +
"\"source\":\"BYODB\"," +
"\"tag\":[\"ABXT\",\"I232-F103\"],\"ID\":\"{76573406E8}\"}";
using (var client = new HttpClient())
{
client.DefaultRequestHeaders.Add("Authorization", "apiKey " + "7cbafstad-677654c4-8765fgt-95deb");
var content= new StringContent(jsonData, Encoding.UTF8, "application/json");
content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
HttpResponseMessage response = client.PostAsync(uploadPath, content).Result;
var responseBody = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
var sucessRes = JsonConvert.DeserializeObject<dynamic>(responseBody);
//Print Success Msg
}
else
{
var failureRes = JsonConvert.DeserializeObject<dynamic>(responseBody);
//Print Failure Msg
}
}
異常詳情:
對於響應 Object,我收到:
response = {StatusCode: 400, ReasonPhrase: 'Bad Request', Version: 1.1, Content: System.Net.Http.StreamContent, Headers:
{
Transfer-Encoding: chunked
Connection: keep-alive
X-Response-Time: 0.001
X-Request-ID: 4514d1b-1a3f-4277-9997-2813cd9d28ed
X-Rat...
對於響應正文,我收到:
{"message":"Invalid JSON","took":0.001,"requestId":"4514d1b-1a3f-4277-9997-2813cd9d28ed"}
當我嘗試通過 postman 調用它時,它成功了:
我在 C# JSON 帖子中做錯了什么?
最好的方法是使用實際的 object 並讓 NewtonsoftJson 負責序列化。
為此,您將需要兩個 nuget 包:
代碼如下所示:
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
namespace Custom.ApiClient
{
internal static class WebApiManager
{
//private const string _requestHeaderBearer = "Bearer";
private const string _responseFormat = "application/json";
private static readonly HttpClient _client;
static WebApiManager()
{
// Setup the client.
_client = new HttpClient { BaseAddress = new Uri("api url goes here"), Timeout = new TimeSpan(0, 0, 0, 0, -1) };
_client.DefaultRequestHeaders.Accept.Clear();
_client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue(_responseFormat));
// Add the API Bearer token identifier for this application.
//_client.DefaultRequestHeaders.Add(RequestHeaderBearer, ConfigHelper.ApiBearerToken);
}
public static async Task<T> Post<T>(object requestObject)
{//the request object is the object being sent as instance of a class
var response = _client.PostAsJsonAsync("api extra path and query params go here", requestObject);
return await ProcessResponse<T>(response);
}
private static async Task<T> ProcessResponse<T>(Task<HttpResponseMessage> responseTask)
{//T represents the respose you expect from this call
var httpResponse = await responseTask;
if(!httpResponse.IsSuccessStatusCode)
throw new HttpRequestException(httpResponse.ToString());
var dataResult = await httpResponse.Content.ReadAsAsync<T>();
return dataResult;
}
}
}
要使用此代碼,您需要執行以下操作:
var myObject = new Object_I_Want_To_Send();
//set some properties here
var response = await WebApiManager.Post<MyResponse>(myObject);
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